We describe convenient preparations of N,N′-dialkyl-1,3-propanedialdiminium chlorides, N,N′-dialkyl-1,3-propanedialdimines, and lithium N,N′-dialkyl-1,3-propanedialdiminates in which the alkyl groups are methyl, ethyl, isopropyl, or tert-butyl. For dialdiminium salts, N2C3 backbone is always trans-s-trans configuration. Three isomers present solution except for tert-butyl compound, only two pre...

The title compound, C(8)H(17)O(2)PS(2), displays a distorted tetra-hedral geometry around the P atom. The P atom is part of a six-membered ring with an isopropyl group in the equatorial position. The mol-ecules are linked by S-H⋯S hydrogen bonds in the crystal packing.